TLA Line data Source code
1 : //
2 : // Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com)
3 : //
4 : // Distributed under the Boost Software License, Version 1.0. (See accompanying
5 : // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
6 : //
7 : // Official repository: https://github.com/boostorg/json
8 : //
9 :
10 : #ifndef BOOST_JSON_DETAIL_CONFIG_HPP
11 : #define BOOST_JSON_DETAIL_CONFIG_HPP
12 :
13 : #include <boost/config.hpp>
14 : #include <boost/config/pragma_message.hpp>
15 : #include <boost/assert.hpp>
16 : #include <boost/throw_exception.hpp>
17 : #include <cstdint>
18 : #include <type_traits>
19 : #include <utility>
20 :
21 : // detect 32/64 bit
22 : #if UINTPTR_MAX == UINT64_MAX
23 : # define BOOST_JSON_ARCH 64
24 : #elif UINTPTR_MAX == UINT32_MAX
25 : # define BOOST_JSON_ARCH 32
26 : #else
27 : # error Unknown or unsupported architecture, please open an issue
28 : #endif
29 :
30 : #ifndef BOOST_JSON_REQUIRE_CONST_INIT
31 : # define BOOST_JSON_REQUIRE_CONST_INIT
32 : # if __cpp_constinit >= 201907L
33 : # undef BOOST_JSON_REQUIRE_CONST_INIT
34 : # define BOOST_JSON_REQUIRE_CONST_INIT constinit
35 : # elif defined(__clang__) && defined(__has_cpp_attribute)
36 : # if __has_cpp_attribute(clang::require_constant_initialization)
37 : # undef BOOST_JSON_REQUIRE_CONST_INIT
38 : # define BOOST_JSON_REQUIRE_CONST_INIT [[clang::require_constant_initialization]]
39 : # endif
40 : # endif
41 : #endif
42 :
43 : #ifndef BOOST_JSON_NO_ATTRIBUTE_NO_DESTROY
44 : # if defined(__clang__) && defined(__has_cpp_attribute)
45 : # if __has_cpp_attribute(clang::no_destroy)
46 : # define BOOST_JSON_ATTRIBUTE_NO_DESTROY [[clang::no_destroy]]
47 : # else
48 : # define BOOST_JSON_NO_ATTRIBUTE_NO_DESTROY
49 : # endif
50 : # else
51 : # define BOOST_JSON_NO_ATTRIBUTE_NO_DESTROY
52 : # endif
53 : #endif
54 :
55 : #if ! defined(BOOST_JSON_NO_SSE2) && \
56 : ! defined(BOOST_JSON_USE_SSE2)
57 : # if (defined(_M_IX86) && _M_IX86_FP == 2) || \
58 : defined(_M_X64) || defined(__SSE2__)
59 : # define BOOST_JSON_USE_SSE2
60 : # endif
61 : #endif
62 :
63 : #if defined(BOOST_JSON_DOCS)
64 : # define BOOST_JSON_DECL
65 : #else
66 : # if (defined(BOOST_JSON_DYN_LINK) || defined(BOOST_ALL_DYN_LINK)) && !defined(BOOST_JSON_STATIC_LINK)
67 : # if defined(BOOST_JSON_SOURCE)
68 : # define BOOST_JSON_DECL BOOST_SYMBOL_EXPORT
69 : # else
70 : # define BOOST_JSON_DECL BOOST_SYMBOL_IMPORT
71 : # endif
72 : # endif // shared lib
73 : # ifndef BOOST_JSON_DECL
74 : # define BOOST_JSON_DECL
75 : # endif
76 : # if !defined(BOOST_JSON_SOURCE) && !defined(BOOST_ALL_NO_LIB) && !defined(BOOST_JSON_NO_LIB)
77 : # define BOOST_LIB_NAME boost_json
78 : # if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_JSON_DYN_LINK)
79 : # define BOOST_DYN_LINK
80 : # endif
81 : # include <boost/config/auto_link.hpp>
82 : # endif
83 : #endif
84 :
85 : #ifndef BOOST_JSON_LIKELY
86 : # define BOOST_JSON_LIKELY(x) BOOST_LIKELY( !!(x) )
87 : #endif
88 :
89 : #ifndef BOOST_JSON_UNLIKELY
90 : # define BOOST_JSON_UNLIKELY(x) BOOST_UNLIKELY( !!(x) )
91 : #endif
92 :
93 : #ifndef BOOST_JSON_UNREACHABLE
94 : # ifdef _MSC_VER
95 : # define BOOST_JSON_UNREACHABLE() __assume(0)
96 : # elif defined(__GNUC__) || defined(__clang__)
97 : # define BOOST_JSON_UNREACHABLE() __builtin_unreachable()
98 : # elif defined(__has_builtin)
99 : # if __has_builtin(__builtin_unreachable)
100 : # define BOOST_JSON_UNREACHABLE() __builtin_unreachable()
101 : # endif
102 : # else
103 : # define BOOST_JSON_UNREACHABLE() static_cast<void>(0)
104 : # endif
105 : #endif
106 :
107 : #ifndef BOOST_JSON_ASSUME
108 : # define BOOST_JSON_ASSUME(x) (!!(x) ? void() : BOOST_JSON_UNREACHABLE())
109 : # ifdef _MSC_VER
110 : # undef BOOST_JSON_ASSUME
111 : # define BOOST_JSON_ASSUME(x) __assume(!!(x))
112 : # elif defined(__has_builtin)
113 : # if __has_builtin(__builtin_assume)
114 : # undef BOOST_JSON_ASSUME
115 : # define BOOST_JSON_ASSUME(x) __builtin_assume(!!(x))
116 : # endif
117 : # endif
118 : #endif
119 :
120 : // older versions of msvc and clang don't always
121 : // constant initialize when they are supposed to
122 : #ifndef BOOST_JSON_WEAK_CONSTINIT
123 : # if defined(_MSC_VER) && ! defined(__clang__) && _MSC_VER < 1920
124 : # define BOOST_JSON_WEAK_CONSTINIT
125 : # elif defined(__clang__) && __clang_major__ < 4
126 : # define BOOST_JSON_WEAK_CONSTINIT
127 : # endif
128 : #endif
129 :
130 : // These macros are private, for tests, do not change
131 : // them or else previously built libraries won't match.
132 : #ifndef BOOST_JSON_MAX_STRING_SIZE
133 : # define BOOST_JSON_NO_MAX_STRING_SIZE
134 : # define BOOST_JSON_MAX_STRING_SIZE 0x7ffffffe
135 : #endif
136 : #ifndef BOOST_JSON_MAX_STRUCTURED_SIZE
137 : # define BOOST_JSON_NO_MAX_STRUCTURED_SIZE
138 : # define BOOST_JSON_MAX_STRUCTURED_SIZE 0x7ffffffe
139 : #endif
140 : #ifndef BOOST_JSON_STACK_BUFFER_SIZE
141 : # define BOOST_JSON_NO_STACK_BUFFER_SIZE
142 : # if defined(__i386__) || defined(__x86_64__) || \
143 : defined(_M_IX86) || defined(_M_X64)
144 : # define BOOST_JSON_STACK_BUFFER_SIZE 4096
145 : # else
146 : // If we are not on Intel, then assume we are on
147 : // embedded and use a smaller stack size. If this
148 : // is not suitable, the user can define the macro
149 : // themselves when building the library or including
150 : // src.hpp.
151 : # define BOOST_JSON_STACK_BUFFER_SIZE 256
152 : # endif
153 : #endif
154 :
155 : #if defined(__cpp_constinit) && __cpp_constinit >= 201907L
156 : # define BOOST_JSON_CONSTINIT constinit
157 : #elif defined(__has_cpp_attribute) && defined(__clang__)
158 : # if __has_cpp_attribute(clang::require_constant_initialization)
159 : # define BOOST_JSON_CONSTINIT [[clang::require_constant_initialization]]
160 : # endif
161 : #elif defined(__GNUC__) && (__GNUC__ >= 10)
162 : # define BOOST_JSON_CONSTINIT __constinit
163 : #endif
164 : #ifndef BOOST_JSON_CONSTINIT
165 : # define BOOST_JSON_CONSTINIT
166 : #endif
167 :
168 : namespace boost {
169 : namespace json {
170 : namespace detail {
171 :
172 : template<class...>
173 : struct make_void
174 : {
175 : using type =void;
176 : };
177 :
178 : template<class... Ts>
179 : using void_t = typename
180 : make_void<Ts...>::type;
181 :
182 : template<class T>
183 : using remove_cvref = typename
184 : std::remove_cv<typename
185 : std::remove_reference<T>::type>::type;
186 :
187 : template<class T, class U>
188 HIT 25058786 : T exchange(T& t, U u) noexcept
189 : {
190 25058786 : T v = std::move(t);
191 25058786 : t = std::move(u);
192 25058786 : return v;
193 : }
194 :
195 : /* This is a derivative work, original copyright:
196 :
197 : Copyright Eric Niebler 2013-present
198 :
199 : Use, modification and distribution is subject to the
200 : Boost Software License, Version 1.0. (See accompanying
201 : file LICENSE_1_0.txt or copy at
202 : http://www.boost.org/LICENSE_1_0.txt)
203 :
204 : Project home: https://github.com/ericniebler/range-v3
205 : */
206 : template<typename T>
207 : struct static_const
208 : {
209 : static constexpr T value {};
210 : };
211 : template<typename T>
212 : constexpr T static_const<T>::value;
213 :
214 : #define BOOST_JSON_INLINE_VARIABLE(name, type) \
215 : namespace { constexpr auto& name = \
216 : ::boost::json::detail::static_const<type>::value; \
217 : } struct _unused_ ## name ## _semicolon_bait_
218 :
219 : } // detail
220 : } // namespace json
221 : } // namespace boost
222 :
223 : #ifndef BOOST_JSON_ALLOW_DEPRECATED
224 : # ifdef BOOST_ALLOW_DEPRECATED
225 : # define BOOST_JSON_ALLOW_DEPRECATED
226 : # endif
227 : #endif
228 :
229 : #if defined(BOOST_GCC) && BOOST_GCC < 50000 && !defined(BOOST_JSON_ALLOW_DEPRECATED)
230 : # pragma GCC warning "Support for GCC versions below 5.0 is deprecated and will stop in Boost 1.88.0. To suppress this message define macro BOOST_JSON_ALLOW_DEPRECATED."
231 : #endif
232 :
233 : #ifndef BOOST_JSON_ALLOW_DEPRECATED
234 : # define BOOST_JSON_DEPRECATED(x) BOOST_DEPRECATED(x)
235 : #else
236 : # define BOOST_JSON_DEPRECATED(x)
237 : #endif
238 :
239 : #ifndef BOOST_ALL_NO_EMBEDDED_GDB_SCRIPTS
240 : #include <boost/json/detail/gdb_printers.hpp>
241 : #endif
242 :
243 : #endif
|
